期刊
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
卷 20, 期 5, 页码 483-486出版社
SPRINGER
DOI: 10.1023/B:WIBI.0000040398.93103.21
关键词
astaxanthin; canthaxanthin; Chlorella zofingiensis; salt stress; secondary carotenoids
The fresh water green microalga Chlorella zofingiensis is known to accumulate ketocarotenoids - primarily astaxanthin but also canthaxanthin - when grown under stress conditions of high light irradiance and low nitrogen. We found that salt stress can replace light stress with respect to inducing carotenoid production: cells of C. zofingiensis grown under low light irradiance and subjected to salt and low nitrogen stress accumulated higher amounts of total secondary carotenoids than those growing under high light and low nitrogen stress. Furthermore, C. zofingiensis growing under conditions of salt stress and low light accumulated higher amounts of canthaxanthin than astaxanthin. It is suggested that for canthaxanthin accumulation under salt stress, light is not a limiting factor, but for astaxanthin accumulation high light irradiance is mandatory. These results may be applied in the future for the commercial production of canthaxanthin by C. zofingiensis in systems in which light availability is poor.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据